Pulley-face-frictioning composition



a COMPOSITIONS,

commeoe PLASTlC DAVID in. nnn'ronn, or NORTH rnnnm, NEW Your.-

I lessees;

Cross Reference re ammmmme conrosrr'ron.

Specification of Letters Patent.

. NT Q F Q Il'o Drawing,-

' igment yfint'rebmry 2:1, 192o. ;s'as11 s1.-.ae,41. i, To all'whomet may co /teem: 'ture by the belt, and the heat gen t d 1 Be it known that I, D v11) M. BnNr'oRD, a thereby." 1

citizen of the-United 'States, residing at North Pelham,"in-th'e county ofwestches- "5 ter and 'StateofNew York, have invented. certain new and useful Improvements in :Pulley-FaceV-Frictioning Compositions, of

which the following is a"specifica tion. My presentinvention relates] to an imin provement in'a icom osition for increasing the traction between river and driyen members for power transmission. -Morespecifically, my composition h'as foundjits greatest use for increasing the traction, and there- 15 by decreasing the slippage, between pulleys and belts such as are commonly used in power transmission practice. Another important advantage of my composition is the ease with which it may be applied to any pulley face, and another advantage lies in the tenacity with which it clings to the face .of all materials, especially metal-face pulleys that have long been used and have received thereon a very highly-polished finish, which finish makes it difficult for most substances to become permanently attached. thereto.

My composition is composed of a suitable fluid quick-drying oil-proof compound, to gether with a mixture of some finely pulverized material, preferably mineral, and from a (great number of such I have selected so lum silicate, or water-glass, as the fluidbonding member for the compound, and for the filler therefor I have selected ulveriz d glass or prefer g water-floate ground as Y I have found in ractice that waterlass, on account of its we ll-known adhesive quali- 40 ties after becoming fairly dry, will afiix itself to highly polishing surfaces and after proper drying, is sufiiciently unitary in structure to withstand the'terrific friction action of a hi h speed, hard. driving'belt, and have foun that ound lass makes the best base in conjunction therewith, and the two to ether, after having become dry, form a bar close-clinging coating on bright or highly polished surfaces, and of metal pulley drivin faces more especially, and form a gran ar surface for providing friction and retaining oil particles, due to the presence of the pulverized glass or water floated ground glass in the composition, and the lass from the fact that it has already been sed, being further adapted to resist frac- I I have fqundiiin practice tendedperlods .of time that thiscom'po si- 6 tion Wlll chng, pulley surfaces for. pc-

lriods as long as six to eight months without m deterioratiomand that if the pulley wiped 'Oif everynight witha clean dry .rag, the excess o l 1s thereupon removed; from the jpulley,fand that. the continued use of this composition and the wiping thef;pulle"y after use will. gradually withdraw a ll -',the 4 f i ffr ny a l el i ie a -sscesse i waste Qll therein, and that eventu allysuch 7 belt becomes dry and pliable and its functions better than ever.

I have found by actual practice that there are not any particular proportions with which. the. and round lass may be mixed, but on the score 0 ease 0 application, I have found that sufiicient ground glass mixed with a suflicient amount of sodium silicate to make a free-flowing mixture similar to paint, thereby permitting it to be 9. brushed on with an ordinary paint brush, is the most economical, cleanly and most satisfactory'mode of application.

I have also found that this composition may be applied at night after the shutdown 35 of the plant and the composition is sufficiently dry by morning to permit immediate use.

. Having thus I claim is:

1. A pulley-face frictioning composition comprislng water-floated ground glass; and a hard-drying liquid mixed therewith.

2. A pulley-face frictioning composition comprismg a, hard-drying li uid substance consisting entirely of wateroated ground glass; and water glass mixed therewith to orm the free-flowin composition for application to the pn le -face; said waterfloated ground glass, w en the composition is dry on the pulley-face, forming sharp granular means adapted for providing friction.

3. A pulley-face frictioning composition consistin entirely of ground glass and a hard-drying liquid mixed therewith.

4. A pulley-face frictioning composition comprising a hard-drying liquid substance consisting entirely of ground glass entirely e e e described my invention, what 90 'free of other solid material; and water glass 9 examine:

dry on the pulley-face; forming shar gran- :form the free-flowing composition adapted for application to the pulle -face by a brush or the like, said groun glass, when the composition is 'dryon the pulley-face, forming sharp granular means adapted for providing friction. j; 7. A -eomprismg a hard-drying liquid substance ulley-face f-rict-ioning composition 0 P I 1H. PnNNnY.

consisting of ground glass free of other solid material; and water glass mixed therewith to form the composition; said ground glass, when'dzhe composition is dry on the pulley-face, forming shar granular means adapted :for providi frictlon and :iOl-{extracting oil particles rom a belt.

8. A pulley-face frictioning composition comprising a hard-drying, free-flowing liquld substance consisting entirely of water- 'fioated ground glass entirely free of other solid material; and water glass mixed therewith "to form the free-flowing composition for apiplication to the pulley-face; said water- 4 "position is dry on the pulley-face, form'ing oated ground-glass, when the Loomshar granular means adapted for providiiD-i 'ing riction and for extractin 0%iparticles. 40

DAVID M. E Witnessesr v I W. L. Barnum, 

